When someone ports a number from company X to company Y, is there any time restriction in porting said number from company Y to company Z? Example: Customer ports from Telus to Fido. Customer realizes Fido has subpar coverage at their home and that Telus was fine. Wanting to save money, they consider Koodo, which uses the same network as Telus. Can they immediately port their number away from Fido to Koodo?